a system of measures, actions and legislations undertaken by the Imperial Russian and later Soviet authorities to strengthen Russian national, political and linguistic positions in Ukraine.

The policy of Russification of Finland was a governmental policy of the Russian Empire aimed at limiting the special status of the Grand Duchy of Finland and possibly the termination of its political autonomy and cultural uniqueness in 1899–1905 and in 1908–1917, fully integrating Finland to the Russian Empire.

The Russification of Belarus denotes a historical process where the integration of Russian language and culture increasingly influenced Belarusian society, especially during the 20th century.

The Russification of Poland was an intense process, especially under Partitioned Poland, when the Russian state aimed to denationalise Poles via incremental enforcement of language, culture, the arts, the Orthodox religion and Russian practices.